Finding the Fourth Proportional to 372,790,390.49, 514,451,305.74 and 207,774,417.05
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Solution
The fourth proportional to 372,790,390.49, 514,451,305.74 and 207,774,417.05 is: 286,729,011.46
Step by Step Solution
- Step 1: Write the proportion equation
372,790,390.49 : 514,451,305.74 = 207,774,417.05 : x - Step 2: Convert to fraction form
372,790,390.49/514,451,305.74 = 207,774,417.05/x - Step 3: Cross multiply
372,790,390.49x = 514,451,305.74 × 207,774,417.05 - Step 4: Simplify right side
372,790,390.49x = 106,889,820,147,128,688 - Step 5: Solve for x
x = 106,889,820,147,128,688/372,790,390.49 - Step 6: Final answer
x = 286,729,011.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.